Applying for laboratory accreditation

For first-time applicants

Our accreditation team helps large and small laboratories to become successful environmental laboratories doing work in and/or for Washington state. Accreditation ensures that laboratories can accurately and reliably perform analytical methods needed to uphold the Clean Water Act, the Clean Drinking Water Act, and/or the RCRA dangerous waste regulations.

These pages offer guidance for first-time applicants, including how to reach the primary auditor assigned to your lab. If you are working for an already accredited laboratory, see our information on preparing for your renewal.